BSD 4_3_Net_2 release

[unix-history] / usr / src / include / a.out.h

diff --git a/usr/src/include/a.out.h b/usr/src/include/a.out.h
index 5de9d9f..83627f7 100644 (file)
--- a/usr/src/include/a.out.h
+++ b/usr/src/include/a.out.h
@@ -1,91 +1,91 @@
-/*
- * Copyright (c) 1980 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+/*-
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.

  *
  *

- *     @(#)a.out.h     5.3 (Berkeley) 6/24/90
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)a.out.h     5.6 (Berkeley) 4/30/91

  */
 
  */
 

-/*
- * Definitions of the a.out header
- * and magic numbers are shared with
- * the kernel.
- */
-#include <sys/exec.h>
+#ifndef        _AOUT_H_
+#define        _AOUT_H_

 
 

-/*
- * Macros which take exec structures as arguments and tell whether
- * the file has a reasonable magic number or offsets to text|symbols|strings.
- */
-#define        N_BADMAG(x) \
-    (((x).a_magic)!=OMAGIC && ((x).a_magic)!=NMAGIC && ((x).a_magic)!=ZMAGIC)
+#include <sys/exec.h>

 
 

-#if defined(vax) || defined(tahoe)
-#define        N_TXTOFF(x) \
-       ((x).a_magic == ZMAGIC ? 1024 : sizeof (struct exec))
+#if defined(hp300) || defined(i386)
+#define        __LDPGSZ        4096

 #endif
 #endif

-
-#if defined(hp300)
-#define        N_TXTOFF(x) \
-       ((x).a_magic == ZMAGIC ? 4096 : sizeof (struct exec))
+#if defined(tahoe) || defined(vax)
+#define        __LDPGSZ        1024

 #endif
 
 #endif
 

-#define N_SYMOFF(x) \
-       (N_TXTOFF(x) + (x).a_text+(x).a_data + (x).a_trsize+(x).a_drsize)
+/* Valid magic number check. */
+#define        N_BADMAG(ex) \
+       ((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \
+           (ex).a_magic != ZMAGIC)

 
 

-#define        N_STROFF(x) \
-       (N_SYMOFF(x) + (x).a_syms)
+/* Address of the bottom of the text segment. */
+#define N_TXTADDR(X)   0

 
 

-/*
- * Format of a relocation datum.
- */
-struct relocation_info {
-       int     r_address;      /* address which is relocated */
-unsigned int   r_symbolnum:24, /* local symbol ordinal */
-               r_pcrel:1,      /* was relocated pc relative already */
-               r_length:2,     /* 0=byte, 1=word, 2=long */
-               r_extern:1,     /* does not include value of sym referenced */
-               :4;             /* nothing, yet */
-};
+/* Address of the bottom of the data segment. */
+#define N_DATADDR(ex) \
+       (N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \
+       : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))

 
 

-/*
- * Format of a symbol table entry; this file is included by <a.out.h>
- * and should be used if you aren't interested the a.out header
- * or relocation information.
- */
-struct nlist {
-       union {
-               char    *n_name;        /* for use when in-core */
-               long    n_strx;         /* index into file string table */
-       } n_un;
-unsigned char  n_type;         /* type flag, i.e. N_TEXT etc; see below */
-       char    n_other;        /* unused */
-       short   n_desc;         /* see <stab.h> */
-unsigned long  n_value;        /* value of this symbol (or sdb offset) */
-};
-#define        n_hash  n_desc          /* used internally by ld */
+/* Text segment offset. */
+#define        N_TXTOFF(ex) \
+       ((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec))

 
 

-/*
- * Simple values for n_type.
- */
-#define        N_UNDF  0x0             /* undefined */
-#define        N_ABS   0x2             /* absolute */
-#define        N_TEXT  0x4             /* text */
-#define        N_DATA  0x6             /* data */
-#define        N_BSS   0x8             /* bss */
-#define        N_COMM  0x12            /* common (internal to ld) */
-#define        N_FN    0x1e            /* file name symbol */
+/* Data segment offset. */
+#define        N_DATOFF(ex) \
+       (N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \
+       : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))

 
 

-#define        N_EXT   01              /* external bit, or'ed in */
-#define        N_TYPE  0x1e            /* mask for all the type bits */
+/* Symbol table offset. */
+#define N_SYMOFF(ex) \
+       (N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \
+           (ex).a_drsize)

 
 

-/*
- * Sdb entries have some of the N_STAB bits set.
- * These are given in <stab.h>
- */
-#define        N_STAB  0xe0            /* if any of these bits set, a SDB entry */
+/* String table offset. */
+#define        N_STROFF(ex)    (N_SYMOFF(ex) + (ex).a_syms)

 
 

-/*
- * Format for namelist values.
- */
-#define        N_FORMAT        "%08x"
+/* Relocation format. */
+struct relocation_info {
+       int r_address;                  /* offset in text or data segment */
+       unsigned int r_symbolnum : 24,  /* ordinal number of add symbol */
+                        r_pcrel :  1,  /* 1 if value should be pc-relative */
+                       r_length :  2,  /* log base 2 of value's width */
+                       r_extern :  1,  /* 1 if need to add symbol to value */
+                                :  4;  /* reserved */
+};
+
+#define _AOUT_INCLUDE_
+#include <nlist.h>
+
+#endif /* !_AOUT_H_ */